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<b>Help for the Rapid Visual Hazard Assessment tool</b>
<p/>

<ul>
	
	<li>
	<b>Views</b>
	You are currently in the Help view. Use the links on the right to go
	to the Map view, or to view the Data sources.
	<br><br>

	</li>
	
	<li>
	<b>Controlling the map</b>
	RVHA uses a Google Maps to view hazard and vulnerability layers over top
	of a regular, satellite or hybrid map. Click a map type ("Map", 
	"Satellite", "Hybrid") in the top left corner of the map to change 
	the base map. You can zoom and pan with the controls on 
	the right margin of the map. If your mouse has a scroll-wheel, you can 
	also zoom in and out with it.
	<br><br>
	</li>
	
	<li>
	<b>Viewing hazard and vulnerability layers</b>

	Turn on different hazard or vulnerabililty layers by clicking on the
	stacked menu on the right. Click "Natural Hazards" then select the 
	layers you want to view. Do the same with "Technological Hazards"
	and "Vulnerabilities"
	
	<br><br>
	
	<b>Note:</b>Remember you need to be in Map view to see the changes on the
	map when you click on different layers. Also, depending on the speed 
	of your internet connection, a layer may take a short while to load.
	If you are "zoomed" out too far, you may find that "point sources"
	like schools, hospitals, storage tanks, toxic sites, etc. either
	do not load or take a long time. Try zooming in to a smaller area
	and turn these layers off and on again. Google tries to make sure
	to only show as many places as it thinks your browser can handle.

	<br><br>
	
	</li>	
		
	<li>
	<b>Finding an address</b>
	RVHA uses a few "mashups" (from Google, Yahoo! and Zillow) to find 
	your home and display information about it. Zillow is a web service 
	that provides free real estate data. The data may or may not be current. 
	Any questions about your real estate information should be directed to 
	<a target="_blank" href="http://www.zillow.com">Zillow</a>. RVHA is not responsible
	for any incorrect real estate information.
	
	<br><br>

	
	Once in a while the web service RVHA uses to find your house can't
	guess the right address. It is best to type in your street number
	and name, followed by your zip code and click Go. Wait for a few
	seconds and the map will show your real estate information in a Google
	Map bubble, or RVHA will tell you it could not "geocode" the address.
	This may happen because it actually could not find your address, or
	the network connection was too slow and timed out.
	<br><br>
	
	</li>	
	
</ul>


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